which is used by default, can also be disabled by passing command line
parameters.
+.. _rapi-users:
Users and passwords
-------------------
``ganeti-rapi`` reads users and passwords from a file (usually
-``/var/lib/ganeti/rapi_users``) on startup. After modifying the password
-file, ``ganeti-rapi`` must be restarted.
+``/var/lib/ganeti/rapi/users``) on startup. Changes to the file will be
+read automatically.
-Each line consists of two or three fields separated by whitespace. The
-first two fields are for username and password. The third field is
-optional and can be used to specify per-user options. Currently,
-``write`` is the only option supported and enables the user to execute
-operations modifying the cluster. Lines starting with the hash sign
-(``#``) are treated as comments.
+Lines starting with the hash sign (``#``) are treated as comments. Each
+line consists of two or three fields separated by whitespace. The first
+two fields are for username and password. The third field is optional
+and can be used to specify per-user options (separated by comma without
+spaces). Available options:
+
+.. pyassert::
+
+ rapi.RAPI_ACCESS_ALL == set([
+ rapi.RAPI_ACCESS_WRITE,
+ rapi.RAPI_ACCESS_READ,
+ ])
+
+:pyeval:`rapi.RAPI_ACCESS_WRITE`
+ Enables the user to execute operations modifying the cluster. Implies
+ :pyeval:`rapi.RAPI_ACCESS_READ` access.
+:pyeval:`rapi.RAPI_ACCESS_READ`
+ Allow access to operations querying for information.
Passwords can either be written in clear text or as a hash. Clear text
passwords may not start with an opening brace (``{``) or they must be
# Hashed password for Jessica
jessica {HA1}7046452df2cbb530877058712cf17bd4 write
+ # Monitoring can query for values
+ monitoring {HA1}ec018ffe72b8e75bb4d508ed5b6d079c read
+
+ # A user who can read and write (the former is implied by granting
+ # write access)
+ superuser {HA1}ec018ffe72b8e75bb4d508ed5b6d079c read,write
+
+When using the RAPI, username and password can be sent to the server
+by using the standard HTTP basic access authentication. This means that
+for accessing the protected URL ``https://cluster.example.com/resource``,
+the address ``https://username:password@cluster.example.com/resource`` should
+be used instead. Alternatively, the appropriate parameter of your HTTP client
+(such as ``-u`` for ``curl``) can be used.
.. [#pwhash] Using the MD5 hash of username, realm and password is
- described in RFC2617_ ("HTTP Authentication"), sections 3.2.2.2 and
- 3.3. The reason for using it over another algorithm is forward
+ described in :rfc:`2617` ("HTTP Authentication"), sections 3.2.2.2
+ and 3.3. The reason for using it over another algorithm is forward
compatibility. If ``ganeti-rapi`` were to implement HTTP Digest
authentication in the future, the same hash could be used.
In the current version ``ganeti-rapi``'s realm, ``Ganeti Remote
--------
The protocol used is JSON_ over HTTP designed after the REST_ principle.
-HTTP Basic authentication as per RFC2617_ is supported.
+HTTP Basic authentication as per :rfc:`2617` is supported.
.. _JSON: http://www.json.org/
.. _REST: http://en.wikipedia.org/wiki/Representational_State_Transfer
-.. _RFC2617: http://tools.ietf.org/rfc/rfc2617.txt
+
+HTTP requests with a body (e.g. ``PUT`` or ``POST``) require the request
+header ``Content-type`` be set to ``application/json`` (see :rfc:`2616`
+(HTTP/1.1), section 7.2.1).
A note on JSON as used by RAPI
PUT or POST?
------------
-According to RFC2616 the main difference between PUT and POST is that
-POST can create new resources but PUT can only create the resource the
-URI was pointing to on the PUT request.
+According to :rfc:`2616` the main difference between PUT and POST is
+that POST can create new resources but PUT can only create the resource
+the URI was pointing to on the PUT request.
Unfortunately, due to historic reasons, the Ganeti RAPI library is not
consistent with this usage, so just use the methods as documented below
Force operation to continue even if it will cause the cluster to become
inconsistent (e.g. because there are not enough master candidates).
+Parameter details
+-----------------
+
+Some parameters are not straight forward, so we describe them in details
+here.
+
+.. _rapi-ipolicy:
+
+``ipolicy``
++++++++++++
+
+The instance policy specification is a dict with the following fields:
+
+.. pyassert::
+
+ constants.IPOLICY_ALL_KEYS == set([constants.ISPECS_MIN,
+ constants.ISPECS_MAX,
+ constants.ISPECS_STD,
+ constants.IPOLICY_DTS,
+ constants.IPOLICY_VCPU_RATIO,
+ constants.IPOLICY_SPINDLE_RATIO])
+
+
+.. pyassert::
+
+ (set(constants.ISPECS_PARAMETER_TYPES.keys()) ==
+ set([constants.ISPEC_MEM_SIZE,
+ constants.ISPEC_DISK_SIZE,
+ constants.ISPEC_DISK_COUNT,
+ constants.ISPEC_CPU_COUNT,
+ constants.ISPEC_NIC_COUNT,
+ constants.ISPEC_SPINDLE_USE]))
+
+.. |ispec-min| replace:: :pyeval:`constants.ISPECS_MIN`
+.. |ispec-max| replace:: :pyeval:`constants.ISPECS_MAX`
+.. |ispec-std| replace:: :pyeval:`constants.ISPECS_STD`
+
+
+|ispec-min|, |ispec-max|, |ispec-std|
+ A sub- `dict` with the following fields, which sets the limit and standard
+ values of the instances:
+
+ :pyeval:`constants.ISPEC_MEM_SIZE`
+ The size in MiB of the memory used
+ :pyeval:`constants.ISPEC_DISK_SIZE`
+ The size in MiB of the disk used
+ :pyeval:`constants.ISPEC_DISK_COUNT`
+ The numbers of disks used
+ :pyeval:`constants.ISPEC_CPU_COUNT`
+ The numbers of cpus used
+ :pyeval:`constants.ISPEC_NIC_COUNT`
+ The numbers of nics used
+ :pyeval:`constants.ISPEC_SPINDLE_USE`
+ The numbers of virtual disk spindles used by this instance. They are
+ not real in the sense of actual HDD spindles, but useful for
+ accounting the spindle usage on the residing node
+:pyeval:`constants.IPOLICY_DTS`
+ A `list` of disk templates allowed for instances using this policy
+:pyeval:`constants.IPOLICY_VCPU_RATIO`
+ Maximum ratio of virtual to physical CPUs (`float`)
+:pyeval:`constants.IPOLICY_SPINDLE_RATIO`
+ Maximum ratio of instances to their node's ``spindle_count`` (`float`)
+
Usage examples
--------------
Shell
+++++
-.. highlight:: sh
+.. highlight:: shell-example
-Using wget::
+Using ``wget``::
- wget -q -O - https://CLUSTERNAME:5080/2/info
+ $ wget -q -O - https://%CLUSTERNAME%:5080/2/info
-or curl::
+or ``curl``::
- curl https://CLUSTERNAME:5080/2/info
+ $ curl https://%CLUSTERNAME%:5080/2/info
+Note: with ``curl``, the request method (GET, POST, PUT) can be specified
+using the ``-X`` command line option, and the username/password can be
+specified with the ``-u`` option. In case of POST requests with a body, the
+Content-Type can be set to JSON (as per the Protocol_ section) using the
+parameter ``-H "Content-Type: application/json"``.
Python
++++++
``/``
+++++
-The root resource.
+The root resource. Has no function, but for legacy reasons the ``GET``
+method is supported.
+
+``/2``
+++++++
+
+Has no function, but for legacy reasons the ``GET`` method is supported.
+
+``/2/info``
++++++++++++
+
+Cluster information resource.
It supports the following commands: ``GET``.
-``GET``
-~~~~~~~
+``GET``
+~~~~~~~
+
+Returns cluster information.
+
+Example::
+
+ {
+ "config_version": 2000000,
+ "name": "cluster",
+ "software_version": "2.0.0~beta2",
+ "os_api_version": 10,
+ "export_version": 0,
+ "candidate_pool_size": 10,
+ "enabled_hypervisors": [
+ "fake"
+ ],
+ "hvparams": {
+ "fake": {}
+ },
+ "default_hypervisor": "fake",
+ "master": "node1.example.com",
+ "architecture": [
+ "64bit",
+ "x86_64"
+ ],
+ "protocol_version": 20,
+ "beparams": {
+ "default": {
+ "auto_balance": true,
+ "vcpus": 1,
+ "memory": 128
+ }
+ },
+ …
+ }
+
+
+``/2/redistribute-config``
+++++++++++++++++++++++++++
+
+Redistribute configuration to all nodes.
+
+It supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Redistribute configuration to all nodes. The result will be a job id.
+
+Job result:
+
+.. opcode_result:: OP_CLUSTER_REDIST_CONF
+
+
+``/2/features``
++++++++++++++++
+
+``GET``
+~~~~~~~
+
+Returns a list of features supported by the RAPI server. Available
+features:
+
+.. pyassert::
+
+ rlib2.ALL_FEATURES == set([rlib2._INST_CREATE_REQV1,
+ rlib2._INST_REINSTALL_REQV1,
+ rlib2._NODE_MIGRATE_REQV1,
+ rlib2._NODE_EVAC_RES1])
+
+:pyeval:`rlib2._INST_CREATE_REQV1`
+ Instance creation request data version 1 supported
+:pyeval:`rlib2._INST_REINSTALL_REQV1`
+ Instance reinstall supports body parameters
+:pyeval:`rlib2._NODE_MIGRATE_REQV1`
+ Whether migrating a node (``/2/nodes/[node_name]/migrate``) supports
+ request body parameters
+:pyeval:`rlib2._NODE_EVAC_RES1`
+ Whether evacuating a node (``/2/nodes/[node_name]/evacuate``) returns
+ a new-style result (see resource description)
+
+
+``/2/modify``
+++++++++++++++++++++++++++++++++++++++++
+
+Modifies cluster parameters.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_CLUSTER_SET_PARAMS
+
+Job result:
+
+.. opcode_result:: OP_CLUSTER_SET_PARAMS
+
+
+``/2/groups``
++++++++++++++
+
+The groups resource.
+
+It supports the following commands: ``GET``, ``POST``.
+
+``GET``
+~~~~~~~
+
+Returns a list of all existing node groups.
+
+Example::
+
+ [
+ {
+ "name": "group1",
+ "uri": "\/2\/groups\/group1"
+ },
+ {
+ "name": "group2",
+ "uri": "\/2\/groups\/group2"
+ }
+ ]
+
+If the optional bool *bulk* argument is provided and set to a true value
+(i.e ``?bulk=1``), the output contains detailed information about node
+groups as a list.
+
+Returned fields: :pyeval:`utils.CommaJoin(sorted(rlib2.G_FIELDS))`.
+
+Example::
+
+ [
+ {
+ "name": "group1",
+ "node_cnt": 2,
+ "node_list": [
+ "node1.example.com",
+ "node2.example.com"
+ ],
+ "uuid": "0d7d407c-262e-49af-881a-6a430034bf43",
+ …
+ },
+ {
+ "name": "group2",
+ "node_cnt": 1,
+ "node_list": [
+ "node3.example.com"
+ ],
+ "uuid": "f5a277e7-68f9-44d3-a378-4b25ecb5df5c",
+ …
+ },
+ …
+ ]
+
+``POST``
+~~~~~~~~
+
+Creates a node group.
+
+If the optional bool *dry-run* argument is provided, the job will not be
+actually executed, only the pre-execution checks will be done.
+
+Returns: a job ID that can be used later for polling.
+
+Body parameters:
+
+.. opcode_params:: OP_GROUP_ADD
+
+Earlier versions used a parameter named ``name`` which, while still
+supported, has been renamed to ``group_name``.
+
+Job result:
+
+.. opcode_result:: OP_GROUP_ADD
+
+
+``/2/groups/[group_name]``
+++++++++++++++++++++++++++
+
+Returns information about a node group.
+
+It supports the following commands: ``GET``, ``DELETE``.
+
+``GET``
+~~~~~~~
+
+Returns information about a node group, similar to the bulk output from
+the node group list.
+
+Returned fields: :pyeval:`utils.CommaJoin(sorted(rlib2.G_FIELDS))`.
+
+``DELETE``
+~~~~~~~~~~
+
+Deletes a node group.
+
+It supports the ``dry-run`` argument.
+
+Job result:
+
+.. opcode_result:: OP_GROUP_REMOVE
+
+
+``/2/groups/[group_name]/modify``
++++++++++++++++++++++++++++++++++
+
+Modifies the parameters of a node group.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_GROUP_SET_PARAMS
+ :exclude: group_name
+
+Job result:
+
+.. opcode_result:: OP_GROUP_SET_PARAMS
+
+
+``/2/groups/[group_name]/rename``
++++++++++++++++++++++++++++++++++
+
+Renames a node group.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_GROUP_RENAME
+ :exclude: group_name
+
+Job result:
+
+.. opcode_result:: OP_GROUP_RENAME
+
+
+``/2/groups/[group_name]/assign-nodes``
++++++++++++++++++++++++++++++++++++++++
+
+Assigns nodes to a group.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID. It supports the ``dry-run`` and ``force`` arguments.
+
+Body parameters:
+
+.. opcode_params:: OP_GROUP_ASSIGN_NODES
+ :exclude: group_name, force, dry_run
+
+Job result:
+
+.. opcode_result:: OP_GROUP_ASSIGN_NODES
+
+
+``/2/groups/[group_name]/tags``
++++++++++++++++++++++++++++++++
+
+Manages per-nodegroup tags.
+
+Supports the following commands: ``GET``, ``PUT``, ``DELETE``.
+
+``GET``
+~~~~~~~
+
+Returns a list of tags.
+
+Example::
+
+ ["tag1", "tag2", "tag3"]
+
+``PUT``
+~~~~~~~
+
+Add a set of tags.
+
+The request as a list of strings should be ``PUT`` to this URI. The
+result will be a job id.
+
+It supports the ``dry-run`` argument.
+
+
+``DELETE``
+~~~~~~~~~~
+
+Delete a tag.
+
+In order to delete a set of tags, the DELETE request should be addressed
+to URI like::
+
+ /tags?tag=[tag]&tag=[tag]
+
+It supports the ``dry-run`` argument.
+
+
+``/2/networks``
++++++++++++++++
+
+The networks resource.
+
+It supports the following commands: ``GET``, ``POST``.
+
+``GET``
+~~~~~~~
+
+Returns a list of all existing networks.
+
+Example::
+
+ [
+ {
+ "name": "network1",
+ "uri": "\/2\/networks\/network1"
+ },
+ {
+ "name": "network2",
+ "uri": "\/2\/networks\/network2"
+ }
+ ]
+
+If the optional bool *bulk* argument is provided and set to a true value
+(i.e ``?bulk=1``), the output contains detailed information about networks
+as a list.
+
+Returned fields: :pyeval:`utils.CommaJoin(sorted(rlib2.NET_FIELDS))`.
+
+Example::
+
+ [
+ {
+ 'external_reservations': '10.0.0.0, 10.0.0.1, 10.0.0.15',
+ 'free_count': 13,
+ 'gateway': '10.0.0.1',
+ 'gateway6': None,
+ 'group_list': ['default(bridged, prv0)'],
+ 'inst_list': [],
+ 'mac_prefix': None,
+ 'map': 'XX.............X',
+ 'name': 'nat',
+ 'network': '10.0.0.0/28',
+ 'network6': None,
+ 'reserved_count': 3,
+ 'tags': ['nfdhcpd'],
+ …
+ },
+ …
+ ]
+
+``POST``
+~~~~~~~~
+
+Creates a network.
+
+If the optional bool *dry-run* argument is provided, the job will not be
+actually executed, only the pre-execution checks will be done.
+
+Returns: a job ID that can be used later for polling.
+
+Body parameters:
+
+.. opcode_params:: OP_NETWORK_ADD
+
+Job result:
+
+.. opcode_result:: OP_NETWORK_ADD
+
+
+``/2/networks/[network_name]``
+++++++++++++++++++++++++++++++
+
+Returns information about a network.
+
+It supports the following commands: ``GET``, ``DELETE``.
+
+``GET``
+~~~~~~~
+
+Returns information about a network, similar to the bulk output from
+the network list.
+
+Returned fields: :pyeval:`utils.CommaJoin(sorted(rlib2.NET_FIELDS))`.
+
+``DELETE``
+~~~~~~~~~~
+
+Deletes a network.
+
+It supports the ``dry-run`` argument.
+
+Job result:
+
+.. opcode_result:: OP_NETWORK_REMOVE
+
+
+``/2/networks/[network_name]/modify``
++++++++++++++++++++++++++++++++++++++
+
+Modifies the parameters of a network.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_NETWORK_SET_PARAMS
+
+Job result:
+
+.. opcode_result:: OP_NETWORK_SET_PARAMS
+
+
+``/2/networks/[network_name]/connect``
+++++++++++++++++++++++++++++++++++++++
+
+Connects a network to a nodegroup.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID. It supports the ``dry-run`` arguments.
+
+Body parameters:
+
+.. opcode_params:: OP_NETWORK_CONNECT
+
+Job result:
+
+.. opcode_result:: OP_NETWORK_CONNECT
+
+
+``/2/networks/[network_name]/disconnect``
++++++++++++++++++++++++++++++++++++++++++
+
+Disonnects a network from a nodegroup.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID. It supports the ``dry-run`` arguments.
+
+Body parameters:
+
+.. opcode_params:: OP_NETWORK_DISCONNECT
+
+Job result:
-Shows the list of mapped resources.
+.. opcode_result:: OP_NETWORK_DISCONNECT
-Returns: a dictionary with 'name' and 'uri' keys for each of them.
-``/2``
-++++++
+``/2/networks/[network_name]/tags``
++++++++++++++++++++++++++++++++++++
-The ``/2`` resource, the root of the version 2 API.
+Manages per-network tags.
-It supports the following commands: ``GET``.
+Supports the following commands: ``GET``, ``PUT``, ``DELETE``.
``GET``
~~~~~~~
-Show the list of mapped resources.
+Returns a list of tags.
-Returns: a dictionary with ``name`` and ``uri`` keys for each of them.
+Example::
-``/2/info``
-+++++++++++
+ ["tag1", "tag2", "tag3"]
-Cluster information resource.
+``PUT``
+~~~~~~~
-It supports the following commands: ``GET``.
+Add a set of tags.
-``GET``
-~~~~~~~
+The request as a list of strings should be ``PUT`` to this URI. The
+result will be a job id.
-Returns cluster information.
+It supports the ``dry-run`` argument.
-Example::
- {
- "config_version": 2000000,
- "name": "cluster",
- "software_version": "2.0.0~beta2",
- "os_api_version": 10,
- "export_version": 0,
- "candidate_pool_size": 10,
- "enabled_hypervisors": [
- "fake"
- ],
- "hvparams": {
- "fake": {}
- },
- "default_hypervisor": "fake",
- "master": "node1.example.com",
- "architecture": [
- "64bit",
- "x86_64"
- ],
- "protocol_version": 20,
- "beparams": {
- "default": {
- "auto_balance": true,
- "vcpus": 1,
- "memory": 128
- }
- }
- }
+``DELETE``
+~~~~~~~~~~
+Delete a tag.
-``/2/redistribute-config``
-++++++++++++++++++++++++++
+In order to delete a set of tags, the DELETE request should be addressed
+to URI like::
-Redistribute configuration to all nodes.
+ /tags?tag=[tag]&tag=[tag]
-It supports the following commands: ``PUT``.
+It supports the ``dry-run`` argument.
-``PUT``
-~~~~~~~
-Redistribute configuration to all nodes. The result will be a job id.
+``/2/instances-multi-alloc``
+++++++++++++++++++++++++++++
+Tries to allocate multiple instances.
-``/2/features``
-+++++++++++++++
+It supports the following commands: ``POST``
-``GET``
-~~~~~~~
+``POST``
+~~~~~~~~
-Returns a list of features supported by the RAPI server. Available
-features:
+The parameters:
-``instance-create-reqv1``
- Instance creation request data version 1 supported.
+.. opcode_params:: OP_INSTANCE_MULTI_ALLOC
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_MULTI_ALLOC
``/2/instances``
(i.e ``?bulk=1``), the output contains detailed information about
instances as a list.
+Returned fields: :pyeval:`utils.CommaJoin(sorted(rlib2.I_FIELDS))`.
+
Example::
[
{
- "status": "running",
- "disk_usage": 20480,
- "nic.bridges": [
- "xen-br0"
- ],
- "name": "web.example.com",
- "tags": ["tag1", "tag2"],
- "beparams": {
- "vcpus": 2,
- "memory": 512
- },
- "disk.sizes": [
- 20480
- ],
- "pnode": "node1.example.com",
- "nic.macs": ["01:23:45:67:89:01"],
- "snodes": ["node2.example.com"],
- "disk_template": "drbd",
- "admin_state": true,
- "os": "debian-etch",
- "oper_state": true
+ "status": "running",
+ "disk_usage": 20480,
+ "nic.bridges": [
+ "xen-br0"
+ ],
+ "name": "web.example.com",
+ "tags": ["tag1", "tag2"],
+ "beparams": {
+ "vcpus": 2,
+ "memory": 512
+ },
+ "disk.sizes": [
+ 20480
+ ],
+ "pnode": "node1.example.com",
+ "nic.macs": ["01:23:45:67:89:01"],
+ "snodes": ["node2.example.com"],
+ "disk_template": "drbd",
+ "admin_state": true,
+ "os": "debian-etch",
+ "oper_state": true,
+ …
},
- ...
+ …
]
``__version__`` (int, required)
Must be ``1`` (older Ganeti versions used a different format for
- instance creation requests, version ``0``, but that format is not
- documented).
-``mode`` (string, required)
- Instance creation mode.
-``name`` (string, required)
- Instance name.
-``disk_template`` (string, required)
- Disk template for instance.
-``disks`` (list, required)
- List of disk definitions. Example: ``[{"size": 100}, {"size": 5}]``.
- Each disk definition must contain a ``size`` value and can contain an
- optional ``mode`` value denoting the disk access mode (``ro`` or
- ``rw``).
-``nics`` (list, required)
- List of NIC (network interface) definitions. Example: ``[{}, {},
- {"ip": "198.51.100.4"}]``. Each NIC definition can contain the
- optional values ``ip``, ``mode``, ``link`` and ``bridge``.
-``os`` (string, required)
- Instance operating system.
-``osparams`` (dictionary)
- Dictionary with OS parameters. If not valid for the given OS, the job
- will fail.
-``force_variant`` (bool)
- Whether to force an unknown variant.
-``pnode`` (string)
- Primary node.
-``snode`` (string)
- Secondary node.
-``src_node`` (string)
- Source node for import.
-``src_path`` (string)
- Source directory for import.
-``start`` (bool)
- Whether to start instance after creation.
-``ip_check`` (bool)
- Whether to ensure instance's IP address is inactive.
-``name_check`` (bool)
- Whether to ensure instance's name is resolvable.
-``file_storage_dir`` (string)
- File storage directory.
-``file_driver`` (string)
- File storage driver.
-``iallocator`` (string)
- Instance allocator name.
-``source_handshake`` (list)
- Signed handshake from source (remote import only).
-``source_x509_ca`` (string)
- Source X509 CA in PEM format (remote import only).
-``source_instance_name`` (string)
- Source instance name (remote import only).
-``hypervisor`` (string)
- Hypervisor name.
-``hvparams`` (dict)
- Hypervisor parameters, hypervisor-dependent.
-``beparams`` (dict)
- Backend parameters.
+ instance creation requests, version ``0``, but that format is no
+ longer supported)
+
+.. opcode_params:: OP_INSTANCE_CREATE
+
+Earlier versions used parameters named ``name`` and ``os``. These have
+been replaced by ``instance_name`` and ``os_type`` to match the
+underlying opcode. The old names can still be used.
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_CREATE
``/2/instances/[instance_name]``
Returns information about an instance, similar to the bulk output from
the instance list.
+Returned fields: :pyeval:`utils.CommaJoin(sorted(rlib2.I_FIELDS))`.
+
``DELETE``
~~~~~~~~~~
It supports the ``dry-run`` argument.
+Job result:
+
+.. opcode_result:: OP_INSTANCE_REMOVE
+
``/2/instances/[instance_name]/info``
+++++++++++++++++++++++++++++++++++++++
configuration without querying the instance's nodes. The result will be
a job id.
+Job result:
+
+.. opcode_result:: OP_INSTANCE_QUERY_DATA
+
``/2/instances/[instance_name]/reboot``
+++++++++++++++++++++++++++++++++++++++
It supports the ``dry-run`` argument.
+Job result:
+
+.. opcode_result:: OP_INSTANCE_REBOOT
+
``/2/instances/[instance_name]/shutdown``
+++++++++++++++++++++++++++++++++++++++++
It supports the ``dry-run`` argument.
+.. opcode_params:: OP_INSTANCE_SHUTDOWN
+ :exclude: instance_name, dry_run
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_SHUTDOWN
+
``/2/instances/[instance_name]/startup``
++++++++++++++++++++++++++++++++++++++++
It supports the ``dry-run`` argument.
+Job result:
+
+.. opcode_result:: OP_INSTANCE_STARTUP
+
+
``/2/instances/[instance_name]/reinstall``
++++++++++++++++++++++++++++++++++++++++++++++
``POST``
~~~~~~~~
-Takes the parameters ``os`` (OS template name) and ``nostartup`` (bool).
+Returns a job ID.
+
+Body parameters:
+
+``os`` (string, required)
+ Instance operating system.
+``start`` (bool, defaults to true)
+ Whether to start instance after reinstallation.
+``osparams`` (dict)
+ Dictionary with (temporary) OS parameters.
+
+For backwards compatbility, this resource also takes the query
+parameters ``os`` (OS template name) and ``nostartup`` (bool). New
+clients should use the body parameters.
``/2/instances/[instance_name]/replace-disks``
``POST``
~~~~~~~~
-Takes the parameters ``mode`` (one of ``replace_on_primary``,
-``replace_on_secondary``, ``replace_new_secondary`` or
-``replace_auto``), ``disks`` (comma separated list of disk indexes),
-``remote_node`` and ``iallocator``.
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_INSTANCE_REPLACE_DISKS
+ :exclude: instance_name
+
+Ganeti 2.4 and below used query parameters. Those are deprecated and
+should no longer be used.
-Either ``remote_node`` or ``iallocator`` needs to be defined when using
-``mode=replace_new_secondary``.
+Job result:
-``mode`` is a mandatory parameter. ``replace_auto`` tries to determine
-the broken disk(s) on its own and replacing it.
+.. opcode_result:: OP_INSTANCE_REPLACE_DISKS
``/2/instances/[instance_name]/activate-disks``
Takes the bool parameter ``ignore_size``. When set ignore the recorded
size (useful for forcing activation when recorded size is wrong).
+Job result:
+
+.. opcode_result:: OP_INSTANCE_ACTIVATE_DISKS
+
``/2/instances/[instance_name]/deactivate-disks``
+++++++++++++++++++++++++++++++++++++++++++++++++
Takes no parameters.
+Job result:
+
+.. opcode_result:: OP_INSTANCE_DEACTIVATE_DISKS
+
+
+``/2/instances/[instance_name]/recreate-disks``
++++++++++++++++++++++++++++++++++++++++++++++++++
+
+Recreate disks of an instance. Supports the following commands:
+``POST``.
+
+``POST``
+~~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_INSTANCE_RECREATE_DISKS
+ :exclude: instance_name
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_RECREATE_DISKS
+
+
+``/2/instances/[instance_name]/disk/[disk_index]/grow``
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+Grows one disk of an instance.
+
+Supports the following commands: ``POST``.
+
+``POST``
+~~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_INSTANCE_GROW_DISK
+ :exclude: instance_name, disk
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_GROW_DISK
+
``/2/instances/[instance_name]/prepare-export``
+++++++++++++++++++++++++++++++++++++++++++++++++
Takes one parameter, ``mode``, for the export mode. Returns a job ID.
+Job result:
+
+.. opcode_result:: OP_BACKUP_PREPARE
+
``/2/instances/[instance_name]/export``
+++++++++++++++++++++++++++++++++++++++++++++++++
Body parameters:
-``mode`` (string)
- Export mode.
-``destination`` (required)
- Destination information, depends on export mode.
-``shutdown`` (bool, required)
- Whether to shutdown instance before export.
-``remove_instance`` (bool)
- Whether to remove instance after export.
-``x509_key_name``
- Name of X509 key (remote export only).
-``destination_x509_ca``
- Destination X509 CA (remote export only).
+.. opcode_params:: OP_BACKUP_EXPORT
+ :exclude: instance_name
+ :alias: target_node=destination
+
+Job result:
+
+.. opcode_result:: OP_BACKUP_EXPORT
``/2/instances/[instance_name]/migrate``
Body parameters:
-``mode`` (string)
- Migration mode.
-``cleanup`` (bool)
- Whether a previously failed migration should be cleaned up.
+.. opcode_params:: OP_INSTANCE_MIGRATE
+ :exclude: instance_name, live
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_MIGRATE
+
+
+``/2/instances/[instance_name]/failover``
++++++++++++++++++++++++++++++++++++++++++
+
+Does a failover of an instance.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_INSTANCE_FAILOVER
+ :exclude: instance_name
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_FAILOVER
``/2/instances/[instance_name]/rename``
Body parameters:
-``new_name`` (string, required)
- New instance name.
-``ip_check`` (bool)
- Whether to ensure instance's IP address is inactive.
-``name_check`` (bool)
- Whether to ensure instance's name is resolvable.
+.. opcode_params:: OP_INSTANCE_RENAME
+ :exclude: instance_name
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_RENAME
``/2/instances/[instance_name]/modify``
Body parameters:
-``osparams`` (dict)
- Dictionary with OS parameters.
-``hvparams`` (dict)
- Hypervisor parameters, hypervisor-dependent.
-``beparams`` (dict)
- Backend parameters.
-``force`` (bool)
- Whether to force the operation.
-``nics`` (list)
- List of NIC changes. Each item is of the form ``(op, settings)``.
- ``op`` can be ``add`` to add a new NIC with the specified settings,
- ``remove`` to remove the last NIC or a number to modify the settings
- of the NIC with that index.
-``disks`` (list)
- List of disk changes. See ``nics``.
-``disk_template`` (string)
- Disk template for instance.
-``remote_node`` (string)
- Secondary node (used when changing disk template).
-``os_name`` (string)
- Change instance's OS name. Does not reinstall the instance.
-``force_variant`` (bool)
- Whether to force an unknown variant.
+.. opcode_params:: OP_INSTANCE_SET_PARAMS
+ :exclude: instance_name
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_SET_PARAMS
+
+
+``/2/instances/[instance_name]/console``
+++++++++++++++++++++++++++++++++++++++++
+
+Request information for connecting to instance's console.
+
+.. pyassert::
+
+ not (hasattr(rlib2.R_2_instances_name_console, "PUT") or
+ hasattr(rlib2.R_2_instances_name_console, "POST") or
+ hasattr(rlib2.R_2_instances_name_console, "DELETE"))
+
+Supports the following commands: ``GET``. Requires authentication with
+one of the following options:
+:pyeval:`utils.CommaJoin(rlib2.R_2_instances_name_console.GET_ACCESS)`.
+
+``GET``
+~~~~~~~
+
+Returns a dictionary containing information about the instance's
+console. Contained keys:
+
+.. pyassert::
+
+ constants.CONS_ALL == frozenset([
+ constants.CONS_MESSAGE,
+ constants.CONS_SSH,
+ constants.CONS_VNC,
+ constants.CONS_SPICE,
+ ])
+
+``instance``
+ Instance name
+``kind``
+ Console type, one of :pyeval:`constants.CONS_SSH`,
+ :pyeval:`constants.CONS_VNC`, :pyeval:`constants.CONS_SPICE`
+ or :pyeval:`constants.CONS_MESSAGE`
+``message``
+ Message to display (:pyeval:`constants.CONS_MESSAGE` type only)
+``host``
+ Host to connect to (:pyeval:`constants.CONS_SSH`,
+ :pyeval:`constants.CONS_VNC` or :pyeval:`constants.CONS_SPICE` only)
+``port``
+ TCP port to connect to (:pyeval:`constants.CONS_VNC` or
+ :pyeval:`constants.CONS_SPICE` only)
+``user``
+ Username to use (:pyeval:`constants.CONS_SSH` only)
+``command``
+ Command to execute on machine (:pyeval:`constants.CONS_SSH` only)
+``display``
+ VNC display number (:pyeval:`constants.CONS_VNC` only)
``/2/instances/[instance_name]/tags``
Returns: a dictionary with jobs id and uri.
+If the optional bool *bulk* argument is provided and set to a true value
+(i.e. ``?bulk=1``), the output contains detailed information about jobs
+as a list.
+
+Returned fields for bulk requests (unlike other bulk requests, these
+fields are not the same as for per-job requests):
+:pyeval:`utils.CommaJoin(sorted(rlib2.J_FIELDS_BULK))`.
+
``/2/jobs/[job_id]``
++++++++++++++++++++
``GET``
~~~~~~~
-Returns a job status.
-
-Returns: a dictionary with job parameters.
+Returns a dictionary with job parameters, containing the fields
+:pyeval:`utils.CommaJoin(sorted(rlib2.J_FIELDS))`.
The result includes:
effects. But whether it make sense to retry depends on the error
classification:
-``resolver_error``
+.. pyassert::
+
+ errors.ECODE_ALL == set([errors.ECODE_RESOLVER, errors.ECODE_NORES,
+ errors.ECODE_INVAL, errors.ECODE_STATE, errors.ECODE_NOENT,
+ errors.ECODE_EXISTS, errors.ECODE_NOTUNIQUE, errors.ECODE_FAULT,
+ errors.ECODE_ENVIRON, errors.ECODE_TEMP_NORES])
+
+:pyeval:`errors.ECODE_RESOLVER`
Resolver errors. This usually means that a name doesn't exist in DNS,
so if it's a case of slow DNS propagation the operation can be retried
later.
-``insufficient_resources``
+:pyeval:`errors.ECODE_NORES`
Not enough resources (iallocator failure, disk space, memory,
etc.). If the resources on the cluster increase, the operation might
succeed.
-``wrong_input``
+:pyeval:`errors.ECODE_TEMP_NORES`
+ Simliar to :pyeval:`errors.ECODE_NORES`, but indicating the operation
+ should be attempted again after some time.
+
+:pyeval:`errors.ECODE_INVAL`
Wrong arguments (at syntax level). The operation will not ever be
accepted unless the arguments change.
-``wrong_state``
+:pyeval:`errors.ECODE_STATE`
Wrong entity state. For example, live migration has been requested for
a down instance, or instance creation on an offline node. The
operation can be retried once the resource has changed state.
-``unknown_entity``
+:pyeval:`errors.ECODE_NOENT`
Entity not found. For example, information has been requested for an
unknown instance.
-``already_exists``
+:pyeval:`errors.ECODE_EXISTS`
Entity already exists. For example, instance creation has been
requested for an already-existing instance.
-``resource_not_unique``
+:pyeval:`errors.ECODE_NOTUNIQUE`
Resource not unique (e.g. MAC or IP duplication).
-``internal_error``
+:pyeval:`errors.ECODE_FAULT`
Internal cluster error. For example, a node is unreachable but not set
offline, or the ganeti node daemons are not working, etc. A
``gnt-cluster verify`` should be run.
-``environment_error``
+:pyeval:`errors.ECODE_ENVIRON`
Environment error (e.g. node disk error). A ``gnt-cluster verify``
should be run.
dict:
``fields``
- The job fields on which to watch for changes.
+ The job fields on which to watch for changes
``previous_job_info``
- Previously received field values or None if not yet available.
+ Previously received field values or None if not yet available
``previous_log_serial``
Highest log serial number received so far or None if not yet
- available.
+ available
Returns None if no changes have been detected and a dict with two keys,
``job_info`` and ``log_entries`` otherwise.
}
]
-If the optional 'bulk' argument is provided and set to 'true' value (i.e
-'?bulk=1'), the output contains detailed information about nodes as a
-list.
+If the optional bool *bulk* argument is provided and set to a true value
+(i.e ``?bulk=1``), the output contains detailed information about nodes
+as a list.
+
+Returned fields: :pyeval:`utils.CommaJoin(sorted(rlib2.N_FIELDS))`.
Example::
"dtotal": 5246208,
"sinst_cnt": 2,
"dfree": 5171712,
- "offline": false
+ "offline": false,
+ …
},
- ...
+ …
]
``/2/nodes/[node_name]``
It supports the following commands: ``GET``.
+Returned fields: :pyeval:`utils.CommaJoin(sorted(rlib2.N_FIELDS))`.
+
+``/2/nodes/[node_name]/powercycle``
++++++++++++++++++++++++++++++++++++
+
+Powercycles a node. Supports the following commands: ``POST``.
+
+``POST``
+~~~~~~~~
+
+Returns a job ID.
+
+Job result:
+
+.. opcode_result:: OP_NODE_POWERCYCLE
+
+
``/2/nodes/[node_name]/evacuate``
+++++++++++++++++++++++++++++++++
-Evacuates all secondary instances off a node.
+Evacuates instances off a node.
It supports the following commands: ``POST``.
``POST``
~~~~~~~~
-To evacuate a node, either one of the ``iallocator`` or ``remote_node``
-parameters must be passed::
+Returns a job ID. The result of the job will contain the IDs of the
+individual jobs submitted to evacuate the node.
+
+Body parameters:
- evacuate?iallocator=[iallocator]
- evacuate?remote_node=[nodeX.example.com]
+.. opcode_params:: OP_NODE_EVACUATE
+ :exclude: nodes
-The result value will be a list, each element being a triple of the job
-id (for this specific evacuation), the instance which is being evacuated
-by this job, and the node to which it is being relocated. In case the
-node is already empty, the result will be an empty list (without any
-jobs being submitted).
+Up to and including Ganeti 2.4 query arguments were used. Those are no
+longer supported. The new request can be detected by the presence of the
+:pyeval:`rlib2._NODE_EVAC_RES1` feature string.
-And additional parameter ``early_release`` signifies whether to try to
-parallelize the evacuations, at the risk of increasing I/O contention
-and increasing the chances of data loss, if the primary node of any of
-the instances being evacuated is not fully healthy.
+Job result:
-If the dry-run parameter was specified, then the evacuation jobs were
-not actually submitted, and the job IDs will be null.
+.. opcode_result:: OP_NODE_EVACUATE
``/2/nodes/[node_name]/migrate``
``POST``
~~~~~~~~
-No parameters are required, but the bool parameter ``live`` can be set
-to use live migration (if available).
+If no mode is explicitly specified, each instances' hypervisor default
+migration mode will be used. Body parameters:
+
+.. opcode_params:: OP_NODE_MIGRATE
+ :exclude: node_name
+
+The query arguments used up to and including Ganeti 2.4 are deprecated
+and should no longer be used. The new request format can be detected by
+the presence of the :pyeval:`rlib2._NODE_MIGRATE_REQV1` feature string.
+
+Job result:
+
+.. opcode_result:: OP_NODE_MIGRATE
- migrate?live=[0|1]
``/2/nodes/[node_name]/role``
+++++++++++++++++++++++++++++
The role is always one of the following:
- drained
- - master
- master-candidate
- offline
- regular
+Note that the 'master' role is a special, and currently it can't be
+modified via RAPI, only via the command line (``gnt-cluster
+master-failover``).
+
``GET``
~~~~~~~
It supports the bool ``force`` argument.
+Job result:
+
+.. opcode_result:: OP_NODE_SET_PARAMS
+
+
+``/2/nodes/[node_name]/modify``
++++++++++++++++++++++++++++++++
+
+Modifies the parameters of a node. Supports the following commands:
+``POST``.
+
+``POST``
+~~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_NODE_SET_PARAMS
+ :exclude: node_name
+
+Job result:
+
+.. opcode_result:: OP_NODE_SET_PARAMS
+
+
``/2/nodes/[node_name]/storage``
++++++++++++++++++++++++++++++++
``GET``
~~~~~~~
+.. pyassert::
+
+ constants.VALID_STORAGE_TYPES == set([constants.ST_FILE,
+ constants.ST_LVM_PV,
+ constants.ST_LVM_VG])
+
Requests a list of storage units on a node. Requires the parameters
-``storage_type`` (one of ``file``, ``lvm-pv`` or ``lvm-vg``) and
+``storage_type`` (one of :pyeval:`constants.ST_FILE`,
+:pyeval:`constants.ST_LVM_PV` or :pyeval:`constants.ST_LVM_VG`) and
``output_fields``. The result will be a job id, using which the result
can be retrieved.
~~~~~~~
Modifies parameters of storage units on the node. Requires the
-parameters ``storage_type`` (one of ``file``, ``lvm-pv`` or ``lvm-vg``)
+parameters ``storage_type`` (one of :pyeval:`constants.ST_FILE`,
+:pyeval:`constants.ST_LVM_PV` or :pyeval:`constants.ST_LVM_VG`)
and ``name`` (name of the storage unit). Parameters can be passed
-additionally. Currently only ``allocatable`` (bool) is supported. The
-result will be a job id.
+additionally. Currently only :pyeval:`constants.SF_ALLOCATABLE` (bool)
+is supported. The result will be a job id.
+
+Job result:
+
+.. opcode_result:: OP_NODE_MODIFY_STORAGE
+
``/2/nodes/[node_name]/storage/repair``
+++++++++++++++++++++++++++++++++++++++
``PUT``
~~~~~~~
+.. pyassert::
+
+ constants.VALID_STORAGE_OPERATIONS == {
+ constants.ST_LVM_VG: set([constants.SO_FIX_CONSISTENCY]),
+ }
+
Repairs a storage unit on the node. Requires the parameters
-``storage_type`` (currently only ``lvm-vg`` can be repaired) and
-``name`` (name of the storage unit). The result will be a job id.
+``storage_type`` (currently only :pyeval:`constants.ST_LVM_VG` can be
+repaired) and ``name`` (name of the storage unit). The result will be a
+job id.
+
+Job result:
+
+.. opcode_result:: OP_REPAIR_NODE_STORAGE
+
``/2/nodes/[node_name]/tags``
+++++++++++++++++++++++++++++
It supports the ``dry-run`` argument.
+``/2/query/[resource]``
++++++++++++++++++++++++
+
+Requests resource information. Available fields can be found in man
+pages and using ``/2/query/[resource]/fields``. The resource is one of
+:pyeval:`utils.CommaJoin(constants.QR_VIA_RAPI)`. See the :doc:`query2
+design document <design-query2>` for more details.
+
+.. pyassert::
+
+ (rlib2.R_2_query.GET_ACCESS == rlib2.R_2_query.PUT_ACCESS and
+ not (hasattr(rlib2.R_2_query, "POST") or
+ hasattr(rlib2.R_2_query, "DELETE")))
+
+Supports the following commands: ``GET``, ``PUT``. Requires
+authentication with one of the following options:
+:pyeval:`utils.CommaJoin(rlib2.R_2_query.GET_ACCESS)`.
+
+``GET``
+~~~~~~~
+
+Returns list of included fields and actual data. Takes a query parameter
+named "fields", containing a comma-separated list of field names. Does
+not support filtering.
+
+``PUT``
+~~~~~~~
+
+Returns list of included fields and actual data. The list of requested
+fields can either be given as the query parameter "fields" or as a body
+parameter with the same name. The optional body parameter "filter" can
+be given and must be either ``null`` or a list containing filter
+operators.
+
+
+``/2/query/[resource]/fields``
+++++++++++++++++++++++++++++++
+
+Request list of available fields for a resource. The resource is one of
+:pyeval:`utils.CommaJoin(constants.QR_VIA_RAPI)`. See the
+:doc:`query2 design document <design-query2>` for more details.
+
+Supports the following commands: ``GET``.
+
+``GET``
+~~~~~~~
+
+Returns a list of field descriptions for available fields. Takes an
+optional query parameter named "fields", containing a comma-separated
+list of field names.
+
+
``/2/os``
+++++++++
projects / ganeti-local / blobdiff